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According to Live Direct Marketing's daily DNS scan (July 13, 2026), ucsd.edu (Tranco rank #1,930) receives mail via Self-Hosted and sends through Emma. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Self-Hosted |
|---|---|
| ESPs in SPF | Emma |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; pct=100; sp=none; rua=mailto:qrldrzkw@ag.dmarcian.com,mailto:dmarc_rua@emaildefense.proofpoint.com ; ruf=mailto:qrldrzkw@fr.dmarcian.com,mailto:dmarc_ruf@emaildefense.proofpoint.com |
| Tranco rank | #1,930 |
| Snapshot | 2026-07-13 (updated daily) |
ucsd.edu uses Self-Hosted for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
ucsd.edu authorises Emma in its SPF record as of July 13, 2026.
Yes — ucsd.edu publishes p=reject, the strictest DMARC policy (as of July 13, 2026).